Having problem while installing adobe after effects cs5.5. When i click on SETUP.exe, A adobe installer dialoge box appears, its complete but than nothing happens. I installed after affects before too,but like this problem never happens.Please guide me to overcome this problem.

You need to provide much more info about your system. Not much point to just saying that something doesn't work. Run the Creative Suite Cleaner Tool and try another install. If it still doesn't work, provide the install logs.